BACnet Router

BACRouterNew feature: Modbus Gateway, Offline Configuration

The BACRouter is a BACnet router, routing between BACnet networks such as BACnet/IP, BACnet Ethernet, and BACnet MS/TP. The BACRouter has below features:



  • 10/100 Mbps with auto-negotiation and Auto-MDIX
  • Green LED indicate activity.


  • Supports up to 10 BACnet/IP Annex J networks on different UDP port.
  • Has two compatibility options: receive global broadcast; accept unmatched destination IP.
  • Supports 3 different mode: Normal, BBMD mode and Foreign Device mode.
  • BBMD mode(as BACnet/IP Broadcast Management Device) supports up to 148 BDT and 148 FDT entries, supports BDT propagation to other BBMDs, supports NAT.
  • Potential misconfigure of BBMD will be detected in WebUI and runtime.
  • Avoid BBMD broadcast storm.


  • Is designed for complicated BACnet inter-network, performance is stable even with 65534 sub-networks.
  • Fast response to network topology changing, easily recover from configuration mistake.
  • Avoid broadcast storm in inter-network with circular routing path.

Packet Capture

  • Supports capture on all ports. Captured packets could be downloaded as Wireshark PCAP format.
  • When downloading MSTP extended frame will be converted to normal data frame that could be decoded in Wireshark.
  • MSTP packets could be downloaded as “Interval format” to show exactly idle time before frame in Wireshark. It is very helpful to analyze timing and performance problem.
  • Continuous download is supported. Automatic traffic logging is possible with the API.
  • Capture control is mapped to BACnet multi_state_value objects. The scene of problem could be locked for further analyses by program when something is going wrong.

Modbus Gateway

  • Supports TCP/RTU/ASCII slave devices.
  • Two mapping modes are select-able by user: Virtual BACnet Device Mode and Single BACnet Device Mode.
  • Different baudrate (1200~115200), parity (Even, Odd, None), RTU/ASCII mode slaves could co-exist on same RS485 bus.
  • Up to 100 masters, 100 slaves, 1000 points are supported.
  • Supports AI/AO/AV/BI/BO/BV/MI/MO/MV BACnet object types.
  • Allows up to 2048 COV subscriptions. Network storm cause be slave device’s offline could be avoided by limiting notification.
  • Import/Export CSV object definition for batching mapping editing.
  • Online testing/verify when editing configuration.


  • WebUI is password protected and supports several browsers: IE(10+), Edge, Firefox, Chrome, Safari.
  • Supports offline configuration. Configuration file could be exported/imported.
  • Supports powering by mini USB.
  • Easy to install with DIN rail fastener that is ready on metal case.
  • Full DHCP support for convenient PC configuration.
  • Reset button to restore default settings.
  • Power LED and Status LED indicates device status.
  • Very detailed runtime info and logs available for diagnostic purpose.

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